A10 m long clothesline is strung so that it is perfectly horizontal. when a shirt is hung in the exact center the line sags to create an angle that is 1 degree below the horizontal on each end. how far below the original height of the line is the center of the clothesline

Aballoon is rising vertically upwards at a velocity of 10m/s. when it is at a height of 45m from the ground, a parachute bails out from it. after 3s he opens his parachute and decelerates ata a constant rate 5m/s.when. (a) what was the height of the parachutist above the ground when he opened his parachute? (b)how far is the parachutist from the balloon at t=3s? (c)with what velocity does the parachutist hit the ground? (d)after how long does the parachutist hit the ground after his exist from the balloon?